AI Article Synopsis
- Graphene's unique properties make it useful for various applications, especially in vertical devices that leverage its two-dimensional characteristics while exploring three-dimensional potential.
- The study presents a method to create graphene vertical devices by selecting different interfaces with materials, demonstrating two types: Au|graphene|Au and Co|graphene|Co junctions.
- The Au junctions show high magnetoresistance suitable for magnetic field sensors, while the Co junctions exhibit a strong spin valve effect, highlighting the possibilities of using layered graphene structures.
Article Abstract
Graphene has various potential applications owing to its unique electronic, optical, mechanical and chemical properties, which are primarily based on its two-dimensional nature. Graphene-based vertical devices can extend the investigations and potential applications range to three dimensions, while interfacial properties are crucial for the function and performance of such graphene vertical devices. Here we report a general method to construct graphene vertical devices with controllable functions via choosing different interfaces between graphene and other materials. Two types of vertically conducting devices are demonstrated: graphene stacks sandwiched between two Au micro-strips, and between two Co layers. The Au|graphene|Au junctions exhibit large magnetoresistance with ratios up to 400% at room temperature, which have potential applications in magnetic field sensors. The Co|graphene|Co junctions display a robust spin valve effect at room temperature. The layer-by-layer assembly of graphene offers a new route for graphene vertical structures.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1038/ncomms2935 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!